Finding the Fourth Proportional to 640,163.44, 883,350.25 and 353,666.44
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Solution
The fourth proportional to 640,163.44, 883,350.25 and 353,666.44 is: 488,018.09
Step by Step Solution
- Step 1: Write the proportion equation
640,163.44 : 883,350.25 = 353,666.44 : x - Step 2: Convert to fraction form
640,163.44/883,350.25 = 353,666.44/x - Step 3: Cross multiply
640,163.44x = 883,350.25 × 353,666.44 - Step 4: Simplify right side
640,163.44x = 312,411,338,190.61 - Step 5: Solve for x
x = 312,411,338,190.61/640,163.44 - Step 6: Final answer
x = 488,018.09
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.